2 * Copyright (c) 2003 Marcel Moolenaar
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #ifndef _PTHREAD_MD_H_
30 #define _PTHREAD_MD_H_
36 #define HAS__UMTX_OP_ERR 1
38 #define DTV_OFFSET offsetof(struct tcb, tcb_dtv)
41 * Variant I tcb. The structure layout is fixed, don't blindly
46 struct pthread *tcb_thread;
50 * The tcb constructors.
52 struct tcb *_tcb_ctor(struct pthread *, int);
53 void _tcb_dtor(struct tcb *);
55 /* Called from the thread to set its private data. */
57 _tcb_set(struct tcb *tcb)
59 register struct tcb *tp __asm("%r13");
61 __asm __volatile("mov %0 = %1;;" : "=r"(tp) : "r"(tcb));
64 static __inline struct tcb *
67 register struct tcb *tp __asm("%r13");
72 extern struct pthread *_thr_initial;
74 static __inline struct pthread *
78 return (_tcb_get()->tcb_thread);
82 #endif /* _PTHREAD_MD_H_ */